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BQ24610: BQ24610

Shlomi Yehezkia
Mastermind 6150 points
Part Number: BQ24610

Hi Team,

I have a question about BQ24610

In my application I using the charger, the battery and the system separately, and control the connections by my system. I need the application of BQ24610 just to charge the battery.

Can I make the following changes without limiting the protections and the charging?

·         Shorten Q1 and Q2 and RAC and disconnect the R18 R14 C18

·         Shorten ACN and ACP and disconnect them from the RAC resistor

·         Disconnecting Q3 and components C15 R15 R19

Thanks,

Shlomi

BQ24610 Typical Application.docx

  • 0
    TI__Genius 10240 points
    Hi Shlomi,

    The Q1 is reverse blocking FET to prevent the input terminal short and high current flowing from the battery. It will be ON as the synchronous FET when the adaptor is plugged in. It can't be removed. The Q2 is for inrush current control and could possibly removed depending on the inrush current the system can stand. Please refer to the block diagram on Page 15, the RAC can be short if the input current control is not used. The Q3 is ON as the synchronous FET providing the system power from the battery when the adaptor is unplugged. The Q3 could not be removed as well for a battery powered system.
  • 0 in reply to ezhao
    Mastermind 6150 points
    Hi Eric,
    Thank you very much for the detailed answer, now I understand the app better.
    regarding Q3, I use my independent switch, separate from the app, to connect the battery to the LEDs. So if it does not damage the circuit functionality, I understand from your explanation that I can remove it even though you thought otherwise.
    Thanks,
    Shlomi
  • 0 in reply to Shlomi Yehezkia
    TI__Genius 10240 points
    Hi Shlomi,

    If you connect the system load to the battery, then the Q3 and the associated driver circuit can be removed.